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http://dx.doi.org/10.4334/JKCI.2010.22.6.741

Earthquake Resistance of Beam-Column Connection of Precast Concrete U-Shaped Shell Construction  

Im, Hyeong-Ju (Dept. of Architecture, Seoul National University)
Park, Hong-Gun (Dept. of Architecture, Seoul National University)
Eom, Tae-Sung (Dept. of Architecture, Catholic University of Daegu)
Kang, Su-Min (Researcher at Daelim Industrial Co.)
Publication Information
Journal of the Korea Concrete Institute / v.22, no.6, 2010 , pp. 741-751 More about this Journal
Abstract
An experimental study was performed to investigate the earthquake resistance of the beam-column connections as a part of a precast concrete moment-resisting frame that uses precast concrete U-shaped shells for the beams. Five full-scale precast concrete specimens and one conventional monolithic concrete specimen were tested under cyclic loading. The parameters for this test were the reinforcement ratio, stirrup spacing, and end-strengthening details of the precast beam shell. The test results showed that regardless of the test parameters, the precast concrete beam-column connections showed good load-carrying capacity and deformation capacity, which were comparable to those of conventional monolithic concrete specimen. However, at large deformations, the beam-column connections of the precast concrete specimens were subjected to severe strength degradation due to diagonal shear cracks and the bond-slip of re-bars at the joint region. For this reason, the energy dissipation capacity and stiffness of the precast concrete specimens were significantly less than those of the cast-in-place specimen.
Keywords
precast concrete; beam-column connection; energy dissipation; ductility; stiffness;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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